61452136 has 32 divisors (see below), whose sum is σ = 120715200. Its totient is φ = 29272320.

The previous prime is 61452109. The next prime is 61452143. The reversal of 61452136 is 63125416.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60400 + ... + 61408.

It is an arithmetic number, because the mean of its divisors is an integer number (3772350).

Almost surely, 2^61452136 is an apocalyptic number.

It is an amenable number.

61452136 is a deficient number, since it is larger than the sum of its proper divisors (59263064).

61452136 is a wasteful number, since it uses less digits than its factorization.

61452136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1365 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 61452136 is about 7839.1412795025. The cubic root of 61452136 is about 394.6199110416.

It can be divided in two parts, 6145 and 2136, that added together give a square (8281 = 91²).

The spelling of 61452136 in words is "sixty-one million, four hundred fifty-two thousand, one hundred thirty-six".